Update title and filename for Geo + containers

https://gitlab.com/gitlab-org/gitlab-docs/-/jobs/3253740366 failed with lots of this error:

[ ERROR ] internal_links - broken reference to 
  file:///ee/administration/geo/replication/docker_registry.html

Update the location of this removed file.

Related to Update docs redirects 2022-10-31 (!3228 - merged)